77trust / 100

Paper

by Academic Paper Lookup in Search & web

x402 APIPassing, checked 5 h ago

Scientific paper lookup by DOI, arXiv id or PMID: full abstract, Semantic Scholar TLDR, ready-to-paste BibTeX and APA citations, citation counts, retraction flag, paper type, open-access PDF link. Merged from OpenAlex, Crossref, arXiv, PubMed and Semantic Scholar. Use to cite a known paper or expand a search hit.

GET
https://papers.use.x402atlas.com/paper
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
443 ms
449 ms slowest 5%
Last check
Passed
5 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://papers.use.x402atlas.com/paper

Each call costs $0.005 in USDC on Polygon, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://papers.use.x402atlas.com/paper?id=10.48550%2Farxiv.1706.03762

Parameters

ParameterTypeRequiredDescription
doistringNoAlias of id
idstringYesid from /search: a DOI, arxiv:<id> or pmid:<id>

Example response

The provider's example. We can't check it without paying.

Example response, 35 lines
{
  "abstract": "The dominant sequence transduction models are based on complex recurrent or convolutional neural networks that include an encoder and a decoder. … We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely.",
  "authors": [
    "Ashish Vaswani",
    "Noam Shazeer",
    "Niki Parmar",
    "Jakob Uszkoreit",
    "Llion Jones",
    "Aidan N. Gomez",
    "Lukasz Kaiser",
    "Illia Polosukhin"
  ],
  "citation": {
    "apa": "Vaswani, A., Shazeer, N., Parmar, N., Uszkoreit, J., Jones, L., Gomez, A. N., Kaiser, L., & Polosukhin, I. (2017). Attention Is All You Need. Advances in Neural Information Processing Systems. https://doi.org/10.48550/arxiv.1706.03762",
    "bibtex": "@article{vaswani2017attention,\n  title={Attention Is All You Need},\n  author={Vaswani, Ashish and Shazeer, Noam and Parmar, Niki and Uszkoreit, Jakob and Jones, Llion and Gomez, Aidan N. and Kaiser, Lukasz and Polosukhin, Illia},\n  journal={Advances in Neural Information Processing Systems},\n  year={2017},\n  doi={10.48550/arxiv.1706.03762}\n}"
  },
  "citationCount": 181057,
  "citationsPerYear": 18105.7,
  "coverage": {
    "complete": true,
    "missing": [],
    "retry": false
  },
  "doi": "10.48550/arxiv.1706.03762",
  "id": "10.48550/arxiv.1706.03762",
  "is_retracted": false,
  "oa_status": "green",
  "pdfUrl": "https://arxiv.org/pdf/1706.03762",
  "title": "Attention Is All You Need",
  "tldr": "A new simple network architecture, the Transformer, based solely on attention mechanisms, is proposed and shown to be superior in quality while being more parallelizable and requiring significantly less time to train.",
  "type": "preprint",
  "url": "https://doi.org/10.48550/arxiv.1706.03762",
  "venue": "Advances in Neural Information Processing Systems",
  "year": 2017
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://papers.use.x402atlas.com/paper?id=10.48550%2Farxiv.1706.03762'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://papers.use.x402atlas.com/paper?id=10.48550%2Farxiv.1706.03762' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fpapers.use.x402atlas.com%2Fpaper
const res = await pay("https://papers.use.x402atlas.com/paper?id=10.48550%2Farxiv.1706.03762");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://papers.use.x402atlas.com/paper?id=10.48550%2Farxiv.1706.03762")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
5 h agoPassed402443 ms$0.005
10 h agoPassed402449 ms$0.005